My web page on replacing the battery in a Yamaha DX7s seems to have generated some interest. I’m glad I did it now, as several people have been in touch to let me know it helped them. In response to a couple of recent queries, I’ve added a page on how to restore Yamaha DX7s factory voice and performance data. After you’ve changed the battery the original internal voices get lost, so this can be a useful thing to know.
Finding your voice(s)
